<footer>
	<div class="submit_link">
     <input type="button" value="全选" class="alt_btn" onclick="Main.checkboxAll('.width_3_quarter')"/> / <input type="button" value="反选" class="alt_btn" onclick="Main.verCheckboxAll('.width_3_quarter')"/>
    
    </div>
    <div class="submit_link">
      <select>
        <option>选中项</option>
        
        <option>删除</option>
      </select>
    
    </div>
  </footer>